Pixel arrangement structure, display panel and mask assembly

Abstract

The invention relates to a pixel arrangement structure, a display panel and a mask assembly, the pixel arrangement structure comprises a plurality of repetitive units arranged in an array, each repetitive unit comprises a plurality of pixel units, the outer contour line of each pixel unit is quadrilateral, and the outer contour line of each pixel unit is provided with a first edge and a second edge which are intersected, and each pixel unit is also provided with two diagonal lines which are respectively connected with two pairs of opposite vertexes of the outer contour line of the pixel unit. The obliquely upward pixel units in the first direction where the first edge is located, the second direction where the second edge is located and the two diagonals are located respectively comprise at least two kinds of pixels, that is, the multiple kinds of pixels are densely arranged in the pixel units in an all-dimensional mode, the space utilization rate is high and even can be close to or reach 100%, and the space utilization rate is high. In other words, various different pixels can be arranged in the space inside the outer contour line of the pixel unit. Thus, a plurality of pixels are closely arranged in the whole pixel unit, the aperture ratio is high, more pixel units can be arranged in a unit area, and the resolution ratio is high.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a pixel arrangement structure, a display panel and a mask assembly. Background Art

[0002] At present, OLED display panels usually use red (R), blue (B) and green (G) pixels in a fixed structure. For example, some products use Real RGB pixel arrangement. In a pixel unit, the first sub-pixel and the second sub-pixel are arranged in the same column or row, and the third sub-pixel is arranged separately in another column or row. The same sub-pixels in two adjacent rows of pixel units are staggered in the horizontal direction.

[0003] However, due to the limitations of the manufacturing process, the traditional Real pixel arrangement requires a certain amount of manufacturing space to be reserved for adjacent identical sub-pixels, resulting in a waste of space in the pixel arrangement and low space utilization. It is difficult to simultaneously meet the requirements of high resolution and high aperture ratio in terms of display effect. Summary of the invention

[0004] Based on this, it is necessary to provide a pixel arrangement structure, a display panel and a mask assembly to address the problem that the traditional pixel arrangement structure cannot meet both high resolution and high aperture ratio.

[0005] A pixel arrangement structure, comprising a plurality of array-arranged repeating units, each of the repeating units comprising a plurality of pixel units, the outer contour of the pixel unit being a quadrilateral, and the outer contour of the pixel unit having two intersecting first sides and second sides, and the pixel unit further having two diagonal lines respectively connecting two pairs of opposite vertices of its outer contour;

[0006] The pixel unit includes at least two types of pixels in a first direction where the first side is located, a second direction where the second side is located, and an oblique direction where each of the two diagonal lines is located.

[0007] In the above pixel arrangement structure, multiple repeating units are arranged in a repeating array, and the repeating units include multiple pixel units with quadrilateral outer contours. The pixel units have at least two types of pixels in the first direction, the second direction, and the two diagonal directions where the two diagonals are located, which is equivalent to closely arranging multiple pixels in the pixel unit in all directions. The space utilization rate is high, and can even approach or reach 100%, that is, the space inside the outer contour line of the pixel unit can be filled with multiple different pixels. In this way, on the one hand, multiple pixels are closely arranged in the entire pixel unit, and the aperture ratio is high; on the other hand, because the pixels are arranged more closely in a single pixel unit, the area of ​​a single pixel unit is smaller, more pixel units can be arranged in a unit area, the number of pixels in a unit area is more, and the resolution rate is higher, which can take into account both high resolution and high aperture ratio, and improve the service life of the display panel.

[0008] In one embodiment, the pixel unit includes a first pixel, a second pixel and a third pixel, the third pixel is located at the center of the pixel unit, and the first pixel and the second pixel are arranged alternately around the third pixel along the circumference of the pixel unit; and the first pixel and the second pixel are arranged in both the first direction and the second direction, the first pixel and the third pixel are arranged in the oblique direction, or the second pixel and the third pixel are arranged in the oblique direction;

[0009] Optionally, the first pixel and the second pixel are arranged flush along an outer contour line of the pixel unit;

[0010] Optionally, the first pixel and the second pixel have the same length on any one of a plurality of sides of the pixel unit contour line.

[0011] In one embodiment, the first pixel and the second pixel each include two, the two first pixels are located at a pair of opposite corners of the pixel unit, the two second pixels are located at another pair of opposite corners of the pixel unit, and the entire periphery of the third pixel is surrounded by the two first pixels and the two second pixels that are staggered.

[0012] In one embodiment, the repeating unit is quadrilateral, the pixel units include four, the four pixel units are arranged in two rows and two columns in the repeating unit, and any two adjacent pixel units are symmetrically arranged about the boundary line between the two;

[0013] The pixels of the four pixel units close to the center of the repeating unit are all first pixels, and the pattern formed by the combination of the four first pixels close to the center of the repeating unit can be formed through the same first mask pattern opening;

[0014] Furthermore, pixels adjacent to four repeating units arranged in two rows and two columns in the first direction and the second direction are all first pixels, and a pattern formed by a combination of four adjacent first pixels of four adjacent repeating units can be formed through the same first mask pattern opening.

[0015] In one embodiment, the outer contour of the pixel unit has a first vertex and a second vertex, the first vertex coincides with the center of the repeating unit, and the second vertex is arranged along a diagonal line of the outer contour of the pixel unit itself and opposite to the first vertex; the two first pixels of the pixel unit are both pentagonal, an inner angle of one of the pentagons is located at the first vertex, and an inner angle of the other pentagon is located at the second vertex;

[0016] Optionally, the pentagon has three right angles and one hypotenuse, the hypotenuse is adjacent to the third pixel, and the right angle in the pentagon opposite to the hypotenuse is located at the first vertex or the second vertex;

[0017] Optionally, the first mask pattern is constructed into an octagon by splicing four of the first pixels.

[0018] In one embodiment, on one side of the repeating unit close to the edge of the repeating unit, pixels adjacent to two pixel units are both second pixels;

[0019] In the plurality of repeating units arrayed in the first direction or the second direction, the four second pixels of the four adjacent pixel units in two adjacent repeating units are adjacent, and a pattern formed by combining the four adjacent second pixels can be formed through the same second mask pattern opening.

[0020] In one embodiment, the two second pixels in the pixel unit are both L-shaped, and the openings of the two second pixels arranged opposite to each other along the same oblique direction are arranged facing each other;

[0021] Optionally, the second mask pattern is constructed by stitching four second pixels into a cross shape;

[0022] Optionally, the third pixel is a hexagon that is symmetrically arranged with respect to the two diagonal lines in the pixel unit.

[0023] In one embodiment, in each of the pixel units, each of the first pixels is divided into two first sub-pixels by the diagonal line passing through the first pixel, each of the second pixels is divided into two second sub-pixels by the diagonal line passing through the second pixel, and the third pixel is divided into four third sub-pixels by two intersecting diagonal lines;

[0024] The pixel unit includes four triangular areas formed by dividing the two diagonal lines, and the first sub-pixel, the second sub-pixel and the third sub-pixel are respectively distributed at three corners of each triangular area.

[0025] A display panel comprises the above pixel arrangement structure.

[0026] A mask assembly, the mask assembly is used for evaporating the above-mentioned pixel arrangement structure, the mask assembly comprises:

[0027] A first mask having a first evaporation opening adapted to a first mask shape composed of a plurality of adjacent first pixels in the pixel arrangement structure;

[0028] A second mask having a second evaporation opening adapted to a second mask shape composed of a plurality of adjacent second pixels in the pixel arrangement structure;

[0029] A third mask having a third evaporation opening adapted to an outer contour of a third pixel in the pixel arrangement structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of a repeating unit in one embodiment of the present application;

[0031] FIG2 is a schematic diagram of a pixel arrangement structure in an embodiment of the present application;

[0032] FIG3 is a schematic diagram of the structure of a repeating unit in one embodiment of the present application;

[0033] FIG4 is a schematic diagram of a pixel arrangement structure in an embodiment of the present application;

[0034] FIG5 is a schematic diagram of the structure of a first mask in an embodiment of the present application;

[0035] FIG6 is a schematic diagram of the structure of a second mask in an embodiment of the present application;

[0036] FIG. 7 is a schematic diagram of the structure of a third mask in an embodiment of the present application.

[0037] Explanation of the figure marks: 100, pixel arrangement structure; 10, repeating unit; 30, pixel unit; 32, first side; 34, second side; 36, diagonal line; 37, first vertex; 38, second vertex; 41, first pixel; 412, first sub-pixel; 43, second pixel; 432, second sub-pixel; 45, third pixel; 452, third sub-pixel; 210, first mask; 211, first evaporation opening; 230, second mask; 231, second evaporation opening; 250, third mask; 251, third evaporation opening. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0043] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0044] See also Figure 1 - Figure 2, according to some embodiments of the present application, the present application provides a pixel arrangement structure 100, including a plurality of array-arranged repeating units 10, the repeating unit 10 including a plurality of pixel units 30, the outer contour of the pixel unit 30 is a quadrilateral, and the outer contour of the pixel unit 30 has two intersecting first sides 32 and second sides 34, and the pixel unit 30 also has two diagonal lines 36 respectively connecting two pairs of opposite vertices of its own outer contour. The pixel unit 30 includes at least two types of pixels in the first direction where the first side 32 is located, the second direction where the second side 34 is located, and the oblique direction where the two diagonal lines 36 are located.

[0045] In this way, a pixel arrangement structure 100 is formed by repeatedly arranging a plurality of repeating units 10, and the repeating unit 10 includes a plurality of pixel units 30 with a quadrilateral outer contour, and the pixel unit 30 has at least two types of pixels in the first direction, the second direction, and the two diagonal directions where the two diagonal lines 36 are located, which is equivalent to arranging a plurality of pixels closely in the pixel unit 30 in all directions, and the space utilization rate is high, and can even approach or reach 100%, that is, a plurality of different pixels can be arranged in the space inside the outer contour line of the pixel unit 30. In this way, on the one hand, a plurality of pixels are closely arranged in the entire pixel unit 30, and the aperture ratio is high; on the other hand, because the pixels are arranged more closely in a single pixel unit 30, the area of ​​the unit pixel unit 30 is smaller, more pixel units 30 can be arranged in the unit area, the number of pixels in the unit area is more, the resolution rate is higher, and high resolution and high aperture ratio can be taken into account, thereby improving the service life of the display panel.

[0046] In some embodiments, the pixel unit 30 includes a first pixel 41, a second pixel 43, and a third pixel 45, the third pixel 45 is located at the center of the pixel unit 30, and the first pixel 41 and the second pixel 43 are arranged in a staggered manner around the third pixel 45 along the circumference of the pixel unit 30, that is, the first pixel 41 and the second pixel 43 are arranged in a staggered manner along the outline of a quadrilateral, and the third pixel 45 is arranged around the center of the pixel unit 30. The first pixel 41 and the second pixel 43 are arranged in both the first direction and the second direction, the first pixel 41 and the third pixel 45 are arranged in an oblique direction, or the second pixel 43 and the third pixel 45 are arranged in an oblique direction, and the plurality of first pixels 41 and the second pixel 43 are arranged in an staggered manner, so that the plurality of first pixels 41 and the plurality of second pixels 43 are arranged around the third pixel 45, and then at least two types of pixels can be arranged in the first direction, the second direction, and any oblique direction, so that the plurality of pixels are arranged closely, and the space utilization rate is high.

[0047] It can be understood that the first pixel 41, the second pixel 43 and the third pixel 45 can be one of a red pixel, a blue pixel and a green pixel respectively. Of course, in some other embodiments, the first pixel 41, the second pixel 43 and the third pixel 45 can also be pixels emitting light of other colors besides red, green and blue, for example, white or yellow, which is not limited in the embodiments of the present application.

[0048] Optionally, the first pixel 41 and the second pixel 43 are arranged flush along the outer contour line of the pixel unit 30, so that the boundary of the pixel unit 30 is flush, and there is no problem of certain pixels protruding or recessed at the edge of the display area. Therefore, the display effect is good during display, and there will be no color fringing, blue, purple, pink, etc. on the display edge of the usual pixel arrangement, and the jagged feeling will be eliminated.

[0049] For example, the first pixel 41 and the second pixel 43 are arranged flush along the first side 32 and the second side 34, that is, the first pixel 41 and the second pixel 43 are flush at the first side 32, and the first pixel 41 and the second pixel 43 are also flush at the second side 34, thereby making the first pixel 41 and the second pixel 43 flush along the outer contour line of the pixel unit 30. Specifically, in one embodiment, the outer contour line of the pixel unit 30 is a square, and the outer contour line of the pixel unit 30 also includes a third side and a fourth side that are respectively opposite to and parallel to the first side 32 and the second side 34, and the first pixel 41 and the second pixel 43 are all arranged flush at the first side 32, the second side 34, the third side and the fourth side, thereby making the edges of the pixel unit 30 flush.

[0050] Optionally, the lengths of the first pixel 41 and the second pixel 43 on any one of the multiple sides of the outline of the pixel unit 30 are the same, for example, the lengths of the first pixel 41 and the second pixel 43 on the first side 32 are the same, and the lengths of the first pixel 41 and the second pixel 43 on the second side 34 are also the same. In this way, the first pixel 41 and the second pixel 43 are evenly arranged in the first direction and the second direction to prevent the display aspect ratio from being distorted, and the display quality will be more realistic and delicate.

[0051] In some embodiments, the first pixel 41 and the second pixel 43 each include two, the two first pixels 41 are located at a pair of opposite corners of the pixel unit 30, the two second pixels 43 are located at another pair of opposite corners of the pixel unit 30, and the entire periphery of the third pixel 45 is surrounded by the two first pixels 41 and the two second pixels 43 that are staggered. This is equivalent to staggering the two first pixels 41 and the second pixels 43 at the four inner corners of the corresponding pixel unit 30, and completely surrounding the third pixel 45 in the space enclosed by the two first pixels 41 and the two second pixels 43, which is equivalent to extending the first pixel 41 and the second pixel 43 as much as possible outside the third pixel 45 along the first direction and the second direction to surround the periphery of the third pixel 45, and the space utilization rate is high.

[0052] In some specific embodiments, the repeating unit 10 is quadrilateral, and the pixel units 30 include four, and the four pixel units 30 are arranged in two rows and two columns in the repeating unit 10. Equivalently, the four pixel units 30 are arranged in two rows and two columns to form a quadrilateral repeating unit 10, and the repeating unit 10 is divided into four regions by the center line of the cross, and the four pixel units 30 are respectively located in the four regions.

[0053] Furthermore, any two adjacent pixel units 30 are symmetrically arranged about the dividing line between them, for example, the pixel unit 30 in the upper left corner is symmetrical with the pixel unit 30 in the upper right corner about the vertical line, the pixel unit 30 in the upper left corner is symmetrical with the pixel unit 30 in the lower left corner about the horizontal line, and similarly, the pixel unit 30 in the lower right corner is symmetrical with the pixel unit 30 in the upper right corner about the horizontal line, and the pixel unit 30 in the lower right corner is symmetrical with the pixel unit 30 in the lower left corner about the numerical line, that is, the pixel unit 30 in the upper right corner, the lower right corner and the lower left corner can be obtained by rotating the pixel unit 30 in the upper left corner by 90°, 180° and 270° respectively, and the entire repeating unit 10 is symmetrical about the center point, which is a centrally symmetrical figure.

[0054] Optionally, the pixel unit 30 is a square, and the repeating unit 10 formed by combining four pixel units 30 is also a square. The overall structure is symmetrical and the pixels are evenly distributed.

[0055] Furthermore, the pixels of the four pixel units 30 near the center of the repeating unit 10 are all first pixels 41, and the pattern formed by the combination of the four first pixels 41 near the center of the repeating unit 10 can be formed through the same first mask pattern opening. In this way, the pixels in different pixel units 30 near the center of the repeating unit 10 are set to the same pixel, and when the pixel arrangement structure 100 is manufactured, multiple first pixels 41 of multiple pixel units 30 can be simultaneously formed through the same evaporation opening of the mask. In this way, under the premise of ensuring that the resolution remains unchanged, compared with manufacturing each first pixel 41 separately, manufacturing multiple first pixels 41 through the same opening, the area of ​​the etched evaporation opening on the mask becomes smaller, the support strength of the mask is enhanced, and the service life of the mask can be increased. In addition, the pixels can be closely arranged to maximize the space utilization, thereby improving the luminous life of the product;

[0056] Furthermore, the pixels at adjacent locations of four repeating units 10 arranged in two rows and two columns in the first direction and the second direction are all first pixels 41, and the pattern formed by the combination of four adjacent first pixels 41 of four adjacent repeating units 10 can be formed through the same first mask pattern opening. In other words, when multiple repeating units 10 are arranged in multiple rows and multiple columns, the four repeating units 10 in two adjacent rows of repeating units 10 can form a larger module, the center of which is the vertex where the four repeating units 10 overlap, and the four first pixels 41 of the four repeating units 10 at the center are adjacent and combined to form a shape that is the first mask pattern.

[0057] In this way, for the two first pixels 41 in a single pixel unit 30, one of the first pixels 41 is combined with the other first pixel 41 unit 30 at the center of the same repeating unit 10 to form a first mask pattern, and the other first pixel 41 is combined with the adjacent first pixel 41 in the adjacent repeating unit 10 to form another first mask pattern, so that all the first pixels 41 can be formed by combining multiple first pixels 41 through the opening of the first mask pattern on the mask plate, which can enable the multiple first pixels 41 to be closely arranged and improve the supporting strength of the mask plate.

[0058] Furthermore, the outer contour of the pixel unit 30 has a first vertex 37 and a second vertex 38, the first vertex 37 coincides with the center of the repeating unit 10, and the second vertex 38 is opposite to the first vertex 37 along a diagonal line 36 of the outer contour of the pixel unit 30 itself, that is, the first vertex 37 and the second vertex 38 are located on a diagonal line 36 of the outer contour of the pixel unit 30, and the first vertex 37 coincides with the center of the repeating unit 10. The two first pixels 41 of the pixel unit 30 are both pentagonal, one inner angle of one pentagon is located at the first vertex 37, and one inner angle of the other pentagon is located at the second vertex 38. In this way, the two pentagons are relatively arranged on the diagonal line 36 of the pixel unit 30 passing through the center of the repeating unit 10, so that the adjacent multiple pixels of the four pixel units 30 near the center of the repeating unit 10 are all first pixels 41, and then the adjacent multiple first pixels 41 of the multiple pixel units 30 can be combined to form a first mask pattern, so that multiple first pixels 41 can be produced through the same evaporation opening of the mask.

[0059] Optionally, the pentagon has three right angles and one hypotenuse, the hypotenuse is adjacent to the third pixel 45, and the right angle opposite to the hypotenuse in the pentagon is located at the first vertex 37 or the second vertex 38, which is equivalent to the right angle of the pentagon being set toward the outside of the pixel unit 30, and the corners of each pentagon facing the outside of the pixel unit 30 are right angles, and the four pentagons can be pieced together to form a complete 360-degree first mask pattern.

[0060] It can be understood that when a pentagon has three right angles, the three right angles can be arranged continuously so that the pentagon has four right-angled sides connected in sequence. The corresponding pentagon is provided with a hypotenuse connecting the first and last right-angled sides opposite to the middle right angle, and the angles between the hypotenuse and the right-angled sides connected to it are all obtuse angles.

[0061] Furthermore, the hypotenuse of the pentagon is tilted so that the first pixel 41 surrounds the periphery of the third pixel 45. For example, the hypotenuse of the pentagon is parallel to the edge of the third pixel 45 adjacent to the hypotenuse, so that the distance between the first pixel 41 and the third pixel 45 is minimized, so that the first pixel 41 and the third pixel 45 are closely arranged.

[0062] Alternatively, the first mask pattern is constructed by combining four first pixels 41 into an octagon, which is equivalent to dividing the octagon through the center line of the cross to obtain four pentagons, i.e., four first pixels 41. By forming a plurality of octagonal holes in an array on the mask, all the first pixels 41 required for the pixel arrangement structure 100 can be produced.

[0063] According to some embodiments of the present application, on one side of the repeating unit 10 close to the edge of the repeating unit 10, the pixels adjacent to two pixel units 30 are both second pixels 43, which is equivalent to the second pixels 43 being located on the outside of the repeating unit 10 close to the edge, and the pixels adjacent to two adjacent pixel units 30 are both second pixels 43, and the two second pixels 43 can be spliced ​​together.

[0064] Furthermore, in the plurality of repeating units 10 arranged in an array in the first direction or the second direction, the four second pixels 43 of the four adjacent pixel units 30 in two adjacent repeating units 10 are adjacent, and the pattern formed by the combination of the four adjacent second pixels 43 can be formed through the opening of the same second mask pattern. That is to say, two second pixels 43 that are combined with each other are formed on the edge side of each repeating unit 10. When the plurality of repeating units 10 are arranged in an array, the two second pixels 43 at the edge of one of the two adjacent repeating units 10 can be combined with the two second pixels 43 at the edge of the other. In this way, the pattern formed by the adjacent combination of the four second pixels 43 is the second mask pattern, and the four second pixels 43 can be formed through the same second mask pattern opening on the mask plate during the manufacturing process.

[0065] In this way, under the premise of ensuring that the resolution remains unchanged, compared with manufacturing each second pixel 43 separately, manufacturing multiple second pixels 43 through the same opening, the area of ​​the etching and evaporation opening on the mask plate becomes smaller, the support strength of the mask plate is enhanced, and the service life of the mask plate can be increased. In addition, the pixels can be closely arranged to maximize the space utilization, thereby improving the luminous life of the product;

[0066] Furthermore, each second pixel 43 in the pixel unit 30 is L-shaped, and the openings of the two second pixels 43 oppositely arranged along the same oblique direction face each other, so that the right angle of the L-shaped second pixel 43 coincides with the inner angle of the outer contour of the pixel unit 30. In the repeating unit 10, when the two second pixels 43 at the edges of the two pixel units 30 are spliced ​​together, one side of the L-shape coincides, and the other side is connected along the first direction or the second direction to form a part of the outer contour line of the repeating unit 10. When two adjacent repeating units 10 are arranged in an array, one outer contour line of the two adjacent repeating units 10 coincides, thereby making the four second pixels 43 in the two adjacent repeating units 10 spliced ​​together, so as to facilitate the production of multiple second pixels 43 through the same second mask pattern opening.

[0067] Optionally, the second mask pattern is constructed into a cross shape by stitching four second pixels 43 , and the second pixel 43 can be manufactured by using a mask having a cross-shaped vapor deposition opening.

[0068] In some embodiments, the third pixel 45 is a hexagon that is symmetrically arranged relative to the two diagonals 36 in the pixel unit 30. In this way, the third pixel 45 is set as a hexagon, so that the first pixel 41 and the second pixel 43 surround the third pixel 45. Specifically, in one embodiment, the first pixel 41 is a pentagon, the second pixel 43 is an L shape, and the internal space formed by the staggered arrangement of two pentagons and two L shapes is a hexagon. The third pixel 45 is matched with a hexagon, which can completely fill the internal space formed by the first pixel 41 and the second pixel 43. In this way, the space utilization rate of the pixel unit 30 can be increased to close to or reach 100%, and multiple pixels can be arranged closely together to save space.

[0069] Referring to FIG. 3-FIG. 4, according to some embodiments of the present application, in each pixel unit 30, each first pixel 41 is divided into two first sub-pixels 412 by a diagonal line 36 passing through the first pixel 41, each second pixel 43 is divided into a second sub-pixel 432 by a diagonal line 36 passing through the second pixel 43, and a third pixel 45 is divided into four third sub-pixels 452 by two intersecting diagonals 36; the pixel unit 30 includes four triangular areas formed by two diagonal lines 36, and the three corners of each triangular area are respectively distributed with a first sub-pixel 412, a second sub-pixel 432 and a third sub-pixel 452. In this way, the pixel unit 30 is further divided to form four three-shaped areas, each of which has a first sub-pixel 412, a second sub-pixel 432 and a third sub-pixel 452, and the three pixels in each triangular area form a light-emitting combination, so that the resolution can be doubled, and the space utilization rate is high, and the requirements of high resolution and high aperture ratio are met at the same time.

[0070] The present embodiment is the same as the repeating unit 10 in the above embodiment, and the distribution of the evaporation openings on the mask is also the same as in the above embodiment. In addition, in the above embodiment, four adjacent first pixels 41 share one evaporation opening of the mask, while in the present embodiment, eight adjacent first sub-pixels 412 share one evaporation opening of the mask; in the above embodiment, four adjacent second pixels 43 share one evaporation opening of the mask, while in the present embodiment, eight adjacent second sub-pixels 432 share one evaporation opening of the mask.

[0071] According to some embodiments of the present application, the present application further provides a display panel, comprising the pixel arrangement structure 100 in any of the above embodiments.

[0072] The display panel has a display area, and the pixel arrangement of the display area uses the pixel arrangement structure 100 described in any of the above embodiments. The display panel of the present application has the beneficial effects of any of the above pixel arrangement structures 100, which will not be described in detail here.

[0073] 5 to 7 , according to some embodiments of the present application, the present application provides a mask assembly for evaporating the pixel arrangement structure 100 described in any of the above embodiments. The mask assembly includes a first mask plate 210 , a second mask plate 230 and a third mask plate 250 .

[0074] The first mask 210 has a first evaporation opening 211 that is adapted to the first mask shape composed of a plurality of adjacent first pixels 41 in the pixel arrangement structure 100, that is, the first mask shape matches the outer contour of the shape after the plurality of adjacent first pixels 41 are combined. In some embodiments of the present application, the first evaporation opening 211 is an octagon, and a plurality of octagonal openings are arranged in an array to prepare a plurality of first pixels 41.

[0075] The second mask 230 has a second evaporation opening 231 that matches the second mask shape composed of a plurality of adjacent second pixels 43 in the pixel arrangement structure 100, that is, the second mask shape matches the outer contour of the shape after the plurality of adjacent second pixels 43 are combined. In some embodiments of the present application, the second evaporation opening 231 is a cross shape, and a plurality of cross-shaped openings are arranged in an array to prepare a plurality of second pixels 43.

[0076] The third mask 250 has a third evaporation opening 251 that matches the outer contour of the third pixel 45 in the pixel arrangement structure 100. A plurality of third evaporation openings 251 that match the third pixel 45 are arrayed on the third mask 250, so that a plurality of third pixels 45 can be manufactured. In some embodiments of the present application, each repeating unit 10 includes four third pixels 45 that are arranged symmetrically relative to the center of the repeating unit 10, so that a plurality of groups of four centrally symmetrical third evaporation openings 251 can be arrayed on the third mask 250, and the openings on the third mask 250 are uniform. Optionally, the third pixel 45 is arranged in a hexagonal shape, and the third evaporation opening 251 is adapted to a hexagon. A plurality of hexagonal openings are arrayed on the third mask 250 for preparing a plurality of third pixels 45.

[0077] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0078] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A pixel arrangement structure, characterized in that: It comprises a plurality of repeating units arranged in an array, each of the repeating units comprises a plurality of pixel units, the outer contour of the pixel unit is a quadrilateral, and the outer contour of the pixel unit has two intersecting first sides and second sides, and the pixel unit also has two diagonal lines respectively connecting two pairs of opposite vertices of its outer contour; The pixel unit includes at least two types of pixels in a first direction where the first side is located, a second direction where the second side is located, and an oblique direction where each of the two diagonal lines is located.

2. The pixel arrangement structure according to claim 1, characterized in that: The pixel unit includes a first pixel, a second pixel and a third pixel, the third pixel is located at the center of the pixel unit, and the first pixel and the second pixel are arranged alternately around the third pixel along the circumference of the pixel unit; and the first pixel and the second pixel are arranged in both the first direction and the second direction, the first pixel and the third pixel are arranged in the oblique direction, or the second pixel and the third pixel are arranged in the oblique direction; Optionally, the first pixel and the second pixel are arranged flush along an outer contour line of the pixel unit; Optionally, the first pixel and the second pixel have the same length on any one of a plurality of sides of the pixel unit contour line.

3. The pixel arrangement structure according to claim 2, characterized in that: The first pixel and the second pixel each include two, the two first pixels are located at a pair of opposite corners of the pixel unit, the two second pixels are located at another pair of opposite corners of the pixel unit, and the entire periphery of the third pixel is surrounded by the two first pixels and the two second pixels that are staggered.

4. The pixel arrangement structure according to claim 3, characterized in that: The repeating unit is in a quadrilateral shape, the pixel units include four, the four pixel units are arranged in two rows and two columns in the repeating unit, and any two adjacent pixel units are symmetrically arranged about a boundary line between the two; The pixels of the four pixel units close to the center of the repeating unit are all first pixels, and the pattern formed by the combination of the four first pixels close to the center of the repeating unit can be formed through the same first mask pattern opening; Furthermore, pixels adjacent to four repeating units arranged in two rows and two columns in the first direction and the second direction are all first pixels, and a pattern formed by a combination of four adjacent first pixels of four adjacent repeating units can be formed through the same first mask pattern opening.

5. The pixel arrangement structure according to claim 4, characterized in that: The outer contour of the pixel unit has a first vertex and a second vertex, the first vertex coincides with the center of the repeating unit, and the second vertex is opposite to the first vertex along a diagonal line of the outer contour of the pixel unit itself; the two first pixels of the pixel unit are both pentagonal, an inner angle of one of the pentagons is located at the first vertex, and an inner angle of the other pentagon is located at the second vertex; Optionally, the pentagon has three right angles and one hypotenuse, the hypotenuse is adjacent to the third pixel, and the right angle in the pentagon opposite to the hypotenuse is located at the first vertex or the second vertex; Optionally, the first mask pattern is constructed into an octagon by splicing four of the first pixels.

6. The pixel arrangement structure according to claim 4, characterized in that: On one side of the repeating unit close to the edge of the repeating unit, pixels adjacent to two pixel units are both second pixels; In the plurality of repeating units arrayed in the first direction or the second direction, the four second pixels of the adjacent four pixel units in two adjacent repeating units are adjacent, and a pattern formed by combining the four adjacent second pixels can be formed through the same second mask pattern opening.

7. The pixel arrangement structure according to claim 6, characterized in that: The two second pixels in the pixel unit are both L-shaped, and the openings of the two second pixels arranged opposite to each other along the same oblique direction are arranged facing each other; Optionally, the second mask pattern is constructed by stitching four second pixels into a cross shape; Optionally, the third pixel is a hexagon that is symmetrically arranged with respect to the two diagonal lines in the pixel unit.

8. The pixel arrangement structure according to any one of claims 3 to 7, characterized in that: In each of the pixel units, each of the first pixels is divided into two first sub-pixels by the diagonal line passing through the first pixel, each of the second pixels is divided into two second sub-pixels by the diagonal line passing through the second pixel, and the third pixel is divided into four third sub-pixels by two intersecting diagonal lines; The pixel unit includes four triangular areas formed by dividing the two diagonal lines, and the first sub-pixel, the second sub-pixel and the third sub-pixel are respectively distributed at three corners of each triangular area.

9. A display panel, characterized in that: The invention comprises the pixel arrangement structure as described in any one of claims 1 to 8.

10. A mask assembly, characterized in that: The mask assembly is used for evaporating the pixel arrangement structure according to any one of claims 2 to 8, and the mask assembly comprises: A first mask having a first evaporation opening adapted to a first mask shape composed of a plurality of adjacent first pixels in the pixel arrangement structure; A second mask having a second evaporation opening adapted to a second mask shape composed of a plurality of adjacent second pixels in the pixel arrangement structure; A third mask having a third evaporation opening adapted to an outer contour of a third pixel in the pixel arrangement structure.

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